Web development IDE in browser, supports Java, ruby, javascript...etc
HiveMind is a browser based web development that combines an application container (jetty), a middleware and a developer environment that runs in the browser.
It runs on the jvm so you are not limited by environment. You can run it on your laptop, company server or even on a cloud service like AWS.
It supports Java, Ruby, Python, JavaScript, Groovy, Clojure.
Source include so it is easy to hack so you can modify it for your own need.
Rapid web application development (python + Flask)
Simple and rapid Application builder, built on top of Flask. includes detailed security, auto form generation, google charts and much more.
Demo on: http://flaskappbuilder.pythonanywhere.com/